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CVE-2023-0956

TEL-STER TelWin SCADA WebInterface Path Traversal

HIGH
7.5
CVSS Score
Published: August 3, 2023 at 06:08 PM UTC
Updated: June 17, 2026 at 05:26 AM UTC
2 products affected across 1 vendorTelwin SCADA WebinterfaceTelWin SCADA WebInterface

Using TelWin SCADA WebInterface by TEL-STER?

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Severity
HIGH7.5
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

External input could be used on TEL-STER TelWin SCADA WebInterface to construct paths to files and directories without properly neutralizing special elements within the pathname, which could allow an unauthenticated attacker to read files on the system.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Telwin SCADA Webinterface· Tel Ster
95%
3.2 ≤ v < 6.27.0 ≤ v < 7.28.09.0
Affected range stops below 6.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.2, so it looks safe — our inference, not a vendor statement
TelWin SCADA WebInterface· Tel Ster
60%
3.2 ≤ v ≤ 6.17.0 ≤ v ≤ 7.18.0 ≤ v ≤ 9.03.27.08.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Third Party Advisory
Source: [email protected]
https://cert.pl/posts/2023/07/CVE-2023-0956/
Third Party AdvisoryUS Government Resource
Source: [email protected]
https://www.cisa.gov/news-events/ics-advisories/icsa-23-215-03
Vendor Advisory
Source: [email protected]
https://www.tel-ster.pl/index.php/telwin-scada/nowosci/372-telwin-scada-podatnosc-cve-2023-0956

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHicscert
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-22

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